Home / 112,656.88-155,468.73-69,642.64

Finding the Fourth Proportional to 112,656.88, 155,468.73 and 69,642.64

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Solution

The fourth proportional to 112,656.88, 155,468.73 and 69,642.64 is: 96,108.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,656.88 : 155,468.73 = 69,642.64 : x
  2. Step 2: Convert to fraction form
    112,656.88/155,468.73 = 69,642.64/x
  3. Step 3: Cross multiply
    112,656.88x = 155,468.73 × 69,642.64
  4. Step 4: Simplify right side
    112,656.88x = 10,827,252,794.65
  5. Step 5: Solve for x
    x = 10,827,252,794.65/112,656.88
  6. Step 6: Final answer
    x = 96,108.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.